|AIO_RETURN(2)||FreeBSD System Calls Manual||AIO_RETURN(2)|
NAMEaio_return — retrieve return status of asynchronous I/O operation (REALTIME)
LIBRARYStandard C Library (libc, -lc)
SYNOPSIS#include < aio.h>
aio_return( struct aiocb *iocb);
DESCRIPTIONThe aio_return() system call returns the final status of the asynchronous I/O request associated with the structure pointed to by iocb.
The aio_return() system call should only be called once, to obtain the final status of an asynchronous I/O operation once it has completed ( aio_error(2) returns something other than EINPROGRESS).
RETURN VALUESIf the asynchronous I/O request has completed, the status is returned as described in read(2), write(2), or fsync(2). Otherwise, aio_return() returns -1 and sets errno to indicate the error condition.
ERRORSThe aio_return() system call will fail if:
- [ EINVAL]
- The iocb argument does not reference a completed asynchronous I/O request.
SEE ALSOaio_cancel(2), aio_error(2), aio_suspend(2), aio_waitcomplete(2), aio_write(2), fsync(2), read(2), write(2), aio(4)
STANDARDSThe aio_return() system call is expected to conform to the IEEE Std 1003.1 (“POSIX.1”) standard.
HISTORYThe aio_return() system call first appeared in FreeBSD 3.0.
AUTHORSThis manual page was written by <email@example.com>.
|October 7, 2006||FreeBSD|